South Bay Salt Ponds: It’s Not Pretty, Yet

2 min

There are thousands of acres of evaporated salt ponds in the South Bay, like this one near Bedwell Bayfront Park, slated for restoration. (Alessandro Vernet/flickr)

About two years ago, Bay Area voters passed Measure AA, a regional $12 per year parcel tax, by nearly 70 percent. You might remember it as the “Clean and Healthy Bay” ballot measure. It’s goal is to restore thousands of acres of the the San Francisco Bay's wetlands and to protect our shoreline against sea level rise.

We start with the South Bay Salt Ponds Restoration Project, which takes away more than $7 million from this first round of funding. This project is huge, spanning three counties: Alameda, Santa Clara and San Mateo. It aims to revitalize over 15,000 acres of former salt evaporation ponds over a 50-year period. That makes it the largest environmental restoration project West of the Mississippi.

Most of the money awarded to this project from the restoration authority will go towards habitat rehabilitation, flood protection measures and recreational improvements at five locations, focusing in on ponds in the Ravenswood and Alviso areas of the South Bay.

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The best vantage point to view the entire salt pond project is from a plane above, but the peak of a windy hill in Bedwell Bayfront Park in Menlo Park can also give you a partial view of the ponds.

“If you look to the left you'll see Greco Island which is a native salt marsh,” says John Bourgeois, executive manager for the project. “It’s a beautiful, lush green marsh at the margin of the bay.”

A view of two of the Ravenswood salt ponds that will be restored back to tidal wetlands. Facebook's headquarters and the foot of the Dumbarton Bridge can be seen on the left. (Yuichi Sakuraba/flickr)

Bourgeois says, Greco Island is untouched but the salt marshes around it were drained for its minerals. The difference between the two is stark.

“Pan over to the right and you see this bright white salt flat; you can see it's kind of a moonscape,” says Bourgeois. “The goal of this project is to take what we're seeing on the right here and convert it to what we see on the left here, this native lush tidal marsh.”

Other things you can see from this point: the foot of the Dumbarton Bridge, Highway 101, a PG&E substation and Facebook’s headquarters. All this infrastructure would benefit from the restoration because tidal marshes offer protection from sea level rise, says Bourgeois.

Although this project is huge in scale, it probably won’t be the next poster child for wetland restoration work. Frankly, it’s just not particularly beautiful. We’re not saving a redwood forest or cleaning up the banks of a beloved river here. But, Bourgeois says, beauty is in the eye of the beholder.

The goal of the project is to get nearly all of the South Bay Salt Ponds looking like Greco Island (above), an untouched salt marsh near the Ravenswood salt ponds. (Lindsay Kingston/flickr)

“They're muddy and mucky and they smell but they are one of the most productive ecosystems on the planet, says Bourgeois. “They provide direct flood protection, they help clean the water and they have a tremendous amount of benefit beyond any sort of aesthetic or habitat value.”

Project officials hope to start the restoration phase of a portion of the ponds, with the help of Measure AA money, this fall.